<%@ page pageEncoding="UTF-8" contentType="text/html;charset=UTF-8" language="java" %>
<%
    Object outp = session.getAttribute(request.getParameter("e")+"PickerId");
    session.removeAttribute(request.getParameter("e")+"PickerId");
    if ( outp == null ) {
        out.print("-1");
    }
    else {
        out.print(outp);
    }
%>
